Often when you're going through your notifications, you end up with something on the end of the pull request URL, for example:

https://github.com/nodejs/node/pull/19201#issuecomment-371266836
https://github.com/nodejs/node/pull/19201#event-1509291051
https://github.com/nodejs/node/pull/19201/files
https://github.com/nodejs/node/pull/19201#pullrequestreview-102067476

If you run git node metadata https://github.com/nodejs/node/pull/19201#issuecomment-371266836 it just shows the help text.

It should be easy to adjust the regex to handle anything of the form

https://(?:www.)github.com/(\w\+)/(\w\+)/pull/([0-9]+).*

and just capture the three things you need (in ()).

Also https://www.github.com/nodejs/node/pull/19201 doesn't currently work.